| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | could be [verb] for | 670 |
|
| 2 | could be [vb pp] for | 643 |
|
| 3 | [modal v] be accounted for | 105 |
|
| 4 | could be accounted [prep] | 24 |
|
| 5 | could [be] accounted for | 24 |
|
| 6 | could be accounted for | 24 |
|
| 7 | could be accounted [prep] | 24 |
|
| 8 | could be account for | 24 |
|
| 9 | could [be] accounted for | 24 |
|
| 10 | could be accounted for | 24 |
|
